1 . Even when familiar with the project, Sergey gave a professional assessment of the TZ and immediately briefly explained how the project will be done. It gives you the certainty that you have a job with a professional.
2nd He asked literally clarificing questions. Such questions to identify inaccuracies and errors in the TZ.
Three Without any excessive considerations, he made corrections and changes.
4 . The work was delivered in time and in full.
I recommend Sergey as a professional specialist.
I'm going to talk to him for such projects.